intro.rst: Small tweaks
intro.rst: Small tweaks

ramiro/pymssql,Aloomaio/pymssql,zerolugithub/pymssql,Aloomaio/pymssql,ramiro/pymssql,JimDennis/pymssql,klothe/pymssql,klothe/pymssql,JimDennis/pymssql,JimDennis/pymssql,pymssql/pymssql,zerolugithub/pymssql,klothe/pymssql,Aloomaio/pymssql,zerolugithub/pymssql,pymssql/pymssql,ramiro/pymssql